Port XMLHttpRequest.response.

Source/WebCore/bindings/dart/custom/DartXMLHttpRequestCustom.cpp

 // Copyright 2011, Google Inc.
 // All rights reserved.
 //
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //    * Redistributions of source code must retain the above copyright
 // notice, this list of conditions and the following disclaimer.
 //    * Redistributions in binary form must reproduce the above
@@ skipping 201 matching lines @@
         return;
     }
 
 fail:
     Dart_ThrowException(exception);
     ASSERT_NOT_REACHED();
 }
 
 void responseGetter(Dart_NativeArguments args)
 {
-    // FIXME: implement.
-    DART_UNIMPLEMENTED();
+    DartApiScope dartApiScope;
+    Dart_Handle exception;
+    {
+        XMLHttpRequest* receiver = DartDOMWrapper::receiver<XMLHttpRequest>(args);
+
+        switch (receiver->responseTypeCode()) {
+        case XMLHttpRequest::ResponseTypeDefault:
+        case XMLHttpRequest::ResponseTypeText:
+            {
+                ExceptionCode ec = 0;
+                String result = receiver->responseText(ec);
+                if (UNLIKELY(ec)) {
+                    exception = DartDOMWrapper::exceptionCodeToDartException(ec);
+                    goto fail;
+                }
+                Dart_SetReturnValue(args, DartUtilities::stringToDart(result));
+                return;
+            }
+
+        case XMLHttpRequest::ResponseTypeDocument:
+            {
+                ExceptionCode ec = 0;
+                Document* document = receiver->responseXML(ec);
+                if (UNLIKELY(ec)) {
+                    exception = DartDOMWrapper::exceptionCodeToDartException(ec);
+                    goto fail;
+                }
+                DartDOMWrapper::returnValue<DartDocument>(args, document);
+                return;
+            }
+
+        case XMLHttpRequest::ResponseTypeBlob:
+#if ENABLE(XHR_RESPONSE_BLOB)
+            {
+                ExceptionCode ec = 0;
+                Blob* blob = receiver->responseBlob(ec);
+                if (UNLIKELY(ec)) {
+                    exception = DartDOMWrapper::exceptionCodeToDartException(ec);
+                    goto fail;
+                }
+                DartDOMWrapper::returnValue<DartBlob>(args, blob);
+            }
+#endif
+            return;
+
+        case XMLHttpRequest::ResponseTypeArrayBuffer:
+            {
+                ExceptionCode ec = 0;
+                ArrayBuffer* arrayBuffer = receiver->responseArrayBuffer(ec);
+                if (UNLIKELY(ec)) {
+                    exception = DartDOMWrapper::exceptionCodeToDartException(ec);
+                    goto fail;
+                }
+                DartDOMWrapper::returnValue<DartArrayBuffer>(args, arrayBuffer);
+                return;
+            }
+        }
+
+        return;
+    }
+
+fail:
+    Dart_ThrowException(exception);
+    ASSERT_NOT_REACHED();
 }
 
 } // DartXMLHttpRequestInternal
 
 } // WebCore